Guero is the ninth studio album by American musician Beck, released on March 29, 2005, by Interscope Records. It was produced with John King and Mike Simpson of the Dust Brothers, who had worked with Beck on his 1996 album Odelay, as well as Tony Hoffer. The album was promoted with the singles "E-Pro", "Girl", and "Hell Yes", and debuted at number two on the US Billboard 200. To date, it is Beck's highest-charting album and had sold over 868,000 copies in the United States as of July 2008. It received positive reviews from critics.